Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
Economy-wide implications of water quality management policies: A case of the Olifants river basin South Africa
Thesis (PhD)--University of Pretoria, 2019.
Saved in:
| Other Authors: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
University of Pretoria
2019
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613594398490624 |
|---|---|
| access_status_str | Open Access |
| author2 | Hassan, Rashid M. |
| author_browse | Hassan, Rashid M. |
| author_facet | Hassan, Rashid M. |
| collection | Thesis |
| dc_rights_str_mv | © 2019 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Thesis (PhD)--University of Pretoria, 2019. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/72757 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:38:37.863Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/72757 Economy-wide implications of water quality management policies: A case of the Olifants river basin South Africa Hassan, Rashid M. u14287171@tuks.co.za Kyei, Clement Kweku UCTD Water quality management South Africa Olifants River Basin pollution Environmental Computable General Equilibrium (CGE) Environmental Social Accounting Matrix (ESAM) Water pollution Economic impacts Sustainable water management strategies Distributional impacts Environmental policies Pollution abatement strategies Water scarcity Socioeconomic development Environmental trade-offs Economic trade-offs Ecosystem sustainability Water-stressed regions Revenue recycling Environmental taxation Regional economic modeling Environmental studies Natural and agricultural sciences theses SDG-06 SDG-06: Clean water and sanitation Natural and agricultural sciences theses SDG-08 SDG-08: Decent work and economic growth Natural and agricultural sciences theses SDG-10 SDG-10: Reduced inequalities Natural and agricultural sciences theses SDG-12 SDG-12: Responsible consumption and production Natural and agricultural sciences theses SDG-17 SDG-17: Partnerships for the goals Thesis (PhD)--University of Pretoria, 2019. The deterioration of water quality threatens the functioning of ecosystems and the sustainability of socioeconomic growth and development more especially for a water-stressed country like South Africa (SA). The Olifants river basin, which is one of the nine water management areas in SA, faces serious water scarcity, with declining surface and groundwater quality due to pollution from mining activities, irrigation agriculture, and industrial waste disposal. This has led to great competition for water among different economic sectors and between upstream and downstream users. As a result, the government has implemented a series of pollution control measures with the view to mitigating pollution and water shortage in the basin. This study developed and used a regional, environmental, computable general equilibrium (CGE) model to assess the environmental, economic, and social impacts of protecting the basin‘s water resources. To calibrate the model, the study also constructed an environmental social accounting matrix (ESAM) using the framework of an environmentally extended SAM. Results of the environmental and economic impacts of taxing water pollution suggest that internalising the negative externality of water pollution in the Olifants river basin will effectively reduce pollution discharge (i.e., achieve its environmental goals). This, however, comes at some costs to the regional economy of the basin. The economic burden of the tax happens to be fairly small though, due to the small relative share of the water pollution supply and abatement costs in total production costs. Furthermore, recycling the tax revenue through income transfers to households or a subsidy to pollution abatement mitigates the adverse economic impacts. Results of the distributional impacts of taxing water pollution in the basin indicate that the water pollution tax is progressive (inequity and poverty-reducing) on the income side as the poorest and vulnerable derive lower shares of their income from capital, which bears the biggest burden of the tax. On the expenditure side, however, the tax is regressive (inequity and poverty increasing), due to the higher share of pollution-intensive goods in poor households‘expenditure. The net effect of the tax is, however, not pro-poor. Recycling the tax revenue through a subsidy to pollution abatement sectors reduces the adverse effect of the tax on household welfare whereas uniform direct lump-sum transfers to households‘income results in a progressive outcome. This study has demonstrated the importance of using an integrated framework that allows non-linear substitution possibilities and endogenous price determination to account for both the direct and indirect costs of water quality management policies. The findings should, however, be viewed with caution due to some limitations inherent in basic assumptions of this study. Firstly, demand for pollution abatement services by production sectors, is specified in a simple way using exogenously determined clean-up rates and the assumption that unit costs of pollution abatement are fixed. Secondly, this study did not account for the economic benefits from water quality improvements as well as from technological advancements that lead to reduced pollution intensities. es2025 Agricultural Economics, Extension and Rural Development PhD Unrestricted SDG-06: Clean water and sanitation SDG-08: Decent work and economic growth SDG-10: Reduced inequalities SDG-12: Responsible consumption and production SDG-17: Partnerships for the goals 2019-12-13T08:08:01Z 2019-12-13T08:08:01Z 2019/09/05 2019 Thesis Kyei, CK 2019, Economy-wide implications of water quality management policies: A case of the Olifants river basin South Africa, PhD Thesis, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/72757> S2019 http://hdl.handle.net/2263/72757 en © 2019 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Water quality management South Africa Olifants River Basin pollution Environmental Computable General Equilibrium (CGE) Environmental Social Accounting Matrix (ESAM) Water pollution Economic impacts Sustainable water management strategies Distributional impacts Environmental policies Pollution abatement strategies Water scarcity Socioeconomic development Environmental trade-offs Economic trade-offs Ecosystem sustainability Water-stressed regions Revenue recycling Environmental taxation Regional economic modeling Environmental studies Natural and agricultural sciences theses SDG-06 SDG-06: Clean water and sanitation Natural and agricultural sciences theses SDG-08 SDG-08: Decent work and economic growth Natural and agricultural sciences theses SDG-10 SDG-10: Reduced inequalities Natural and agricultural sciences theses SDG-12 SDG-12: Responsible consumption and production Natural and agricultural sciences theses SDG-17 SDG-17: Partnerships for the goals Economy-wide implications of water quality management policies: A case of the Olifants river basin South Africa |
| title | Economy-wide implications of water quality management policies: A case of the Olifants river basin South Africa |
| title_full | Economy-wide implications of water quality management policies: A case of the Olifants river basin South Africa |
| title_fullStr | Economy-wide implications of water quality management policies: A case of the Olifants river basin South Africa |
| title_full_unstemmed | Economy-wide implications of water quality management policies: A case of the Olifants river basin South Africa |
| title_short | Economy-wide implications of water quality management policies: A case of the Olifants river basin South Africa |
| title_sort | economy wide implications of water quality management policies a case of the olifants river basin south africa |
| topic | UCTD Water quality management South Africa Olifants River Basin pollution Environmental Computable General Equilibrium (CGE) Environmental Social Accounting Matrix (ESAM) Water pollution Economic impacts Sustainable water management strategies Distributional impacts Environmental policies Pollution abatement strategies Water scarcity Socioeconomic development Environmental trade-offs Economic trade-offs Ecosystem sustainability Water-stressed regions Revenue recycling Environmental taxation Regional economic modeling Environmental studies Natural and agricultural sciences theses SDG-06 SDG-06: Clean water and sanitation Natural and agricultural sciences theses SDG-08 SDG-08: Decent work and economic growth Natural and agricultural sciences theses SDG-10 SDG-10: Reduced inequalities Natural and agricultural sciences theses SDG-12 SDG-12: Responsible consumption and production Natural and agricultural sciences theses SDG-17 SDG-17: Partnerships for the goals |
| url | http://hdl.handle.net/2263/72757 |